I am having a battle with our DBAs over setting Max Memory limits on our SQLServers.
The DBAs say this is not necessary as SQLServer dynamically manages memory and will automatically reduce it's usage as other applications request memory.
I am saying that while it is true that SQLServer does dynamic memory management, for it to really work, the other applications need to be dynamic memory management aware. Otherwise they cannot utilise the feature, and SQLServer will suck up all available memory if the Max Memory setting is not configured.
We have run into this a couple of times where another process on the SQLServer that requires a set amount of free memory to run, has failed to start as there wasn't enough memory available.
I'm now having to explain why the DBAs are wrong, and need to set the Max Memory limit, to non-technical people!
So,...